John H Piet & Ayodhya Prasad. (2000). Formal logic. Cosmo.
Chicago Edition CitationJohn H Piet and Ayodhya Prasad. Formal Logic. New Delhi: Cosmo, 2000.
Deismireacht MLAJohn H Piet and Ayodhya Prasad. Formal Logic. Cosmo, 2000.
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